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CVE
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CVE-2009-4418Date: (C)2009-12-24   (M)2018-02-19


The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : CVSS Score : 5.0
Exploit Score: Exploit Score: 10.0
Impact Score: Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: Access Vector: NETWORK
Attack Complexity: Access Complexity: LOW
Privileges Required: Authentication: NONE
User Interaction: Confidentiality: NONE
Scope: Integrity: NONE
Confidentiality: Availability: PARTIAL
Integrity:  
Availability:  
  
Reference:
http://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/
http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf

CPE    35
cpe:/a:php:php:5
cpe:/a:php:php:5.0.0:rc3
cpe:/a:php:php:5.0.0:rc2
cpe:/a:php:php:5.0.0:rc1
...
CWE    1
CWE-189

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